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k0ka [10]
3 years ago
15

How do we find what percent of 45 is 72

Mathematics
1 answer:
maks197457 [2]3 years ago
3 0
What is 45% of 72

72/x=100/45
<span>(72/x)*x=(100/45)*x       - </span>we multiply both sides of the equation by x
<span>72=2.22222222222*x       - </span>we divide both sides of the equation by (2.22222222222) to get x
<span>72/2.22222222222=x </span>
<span>32.4=x </span>
<span>x=32.4</span>
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Does y = -5x represent a proportional relationship?
Oduvanchick [21]

Answer: No

Step-by-step explanation: A proportional relationship can be described by an equation of the form y = kx, where k is a number called the constant of proportionality.

7 0
3 years ago
Why can't you use the product of powers rule to simplify<br> this expression? Explain.<br> 3^4 * 2^8
yarga [219]

Answer:

Both expressions have different base.

Step-by-step explanation:

Product rule can only be use for the similar bases. For example 2² × 2⁴ have the same base.

For this question, 3⁴ × 2⁸ have different bases which is 3 and 2.

4 0
4 years ago
Pc Richard and son are selling a drone for 179.99 for 10% off and $20 off to the first 100 customers what’s the price
den301095 [7]

Answer:

The price for the first 100 customers is $142.00.

Step-by-step explanation:

Step 1: 10% of 179.99 =  17.99

Step 2: $179.99 - $17.99 = $162.00

Step 3: $162.00 - $20.00 = $142.00

3 0
4 years ago
We have 6 tents for 18 campers each tent holds 2 or 4 campers exactly how many of our tents hold 2
wolverine [178]

Answer:

  3 tents hold 2 campers

Step-by-step explanation:

The given relations can be expressed as a single equation in the number of 2-camper tents.

__

Let x represent the number of 2-camper tents. Then the number of 4-camper tents is 6-x, and the total number of campers in tents is ...

  2x +4(6 -x) = 18

  -2x +24 = 18

  -2x = -6 . . . . . . subtract 24

  x = 3 . . . . . . . divide by -2

Exactly 3 tents hold 2 campers.

_____

<em>Additional comment</em>

The other 3 tents hold 4 campers.

Another way to consider this is to assume that all tents hold 2 campers, and then realize there are 18 -6×2 = 6 campers left over. If these are placed 2 per tent, then there will be 6/2 = 3 tents with 4 campers. The remaining 3 tents will have 2 campers.

8 0
2 years ago
If he = 7x -27 find the value of x
Amiraneli [1.4K]

\\ \sf\longmapsto 7x-27=1

\\ \sf\longmapsto 7x=1+27

\\ \sf\longmapsto 7x=28

\\ \sf\longmapsto x=\dfrac{28}{7}

\\ \sf\longmapsto x=4

5 0
3 years ago
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